急性缺血性脑梗死105例CT表现及其病理的分析

Analysis of CT Manifestations and Pathology of Acute Ischemic Cerebral Infarction

目的 分析急性脑梗死的CT表现。方法 10 5例急性缺血性脑梗死病例 ,在其接受治疗过程中即发病后第 3、11、2 1天和在出院后随访各做头颅CT平扫一次。分别计算病灶的面积和密度的改变程度。结果 ①发病后72h内 ,病灶CT值的改变程度平均下降 2 3 .8% ,病灶的面积平均为 11.2cm2 。②经治疗后在发病后的第 11天 ,第 2 1天病灶面积分别平均缩小了 37.5 %和 39.8% ,病灶CT值分别恢复了 18.2 %和 17.1%。③出院后随访 :病灶基本消失者占 30 % ,面积明显缩小 (缩小 6 0 %以上 )者为 2 2 % ,余 48%的病灶呈小斑片状。结论 普通CT机在急性缺血性脑梗死病例的诊断。

Objective The aim of this study was to analyze the CT findings of acute ischemic cerebral infarction. Methods During the process of treatment, one hundred and five patients who were dignosed as acute ischemic cerebral infarction. All cases underwent CT plain scan on the third, eleventh, twenty first day after the symptom onset and one time follow up after discharging from hospital. The CT numbers and the areas of the lesions and their corresponding parts on the oppsite side were measured and compared. Results ① In 72 huors after the symptom onset, the radiodensity decreased 23.8% when compared to its oppsite part. The mean area of lesions was 11.2cm 2. ② On the eleventh and twenty first day, the areas of the lesions contracted 37.5% and 39.8% and the CT numbers increased 18.2% and 17.1% correspondingly. ③ Follow up after discharging from hospital: 30% of the lesions were basically disappeared, 22% of the lesions contracted more than 60% of their areas, the rest 48% of the lesions showed the pachy lesions left. Conclusion Conventional CT provides signifinant information in the diagnosis, the evaluation of the treatment and the follow up of acute ischemic cerebral infarction. [